When the thing has a head and a tail. For a painting company I maintain a tool that turns a set of PDFs into one quote. My plan was to build it into my platform, and I had spent days stuck on where such actions should run. Out of desperation I dug up the fifteen year old code and asked an agent for a web version, letting go of everything I would normally add: no object model, no server configuration, no database. The result runs entirely in the browser and needs a folder on a web server, went from a hypothetical delivery to a planned appointment in one evening, and has been in production since. The fewer moving parts, the better. The platform did not go away; it got smaller and stronger.